Police in India have clashed with residents of a largely-Christian fishing village protesting against a port redevelopment project, leaving more than 80 people injured.

Catholic priests led hundreds of demonstrators in a march against the $900-million Vizhinjam port project, which is being undertaken by India's Adani Group.

But the protest in Kerala state turned violent and police fought locals in streets and police vehicles were attacked. A total of 46 protesters were hurt in the fighting along with 36 police officers.